Home / 2,947.25-4,067.05-1,620.69

Finding the Fourth Proportional to 2,947.25, 4,067.05 and 1,620.69

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Solution

The fourth proportional to 2,947.25, 4,067.05 and 1,620.69 is: 2,236.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.25 : 4,067.05 = 1,620.69 : x
  2. Step 2: Convert to fraction form
    2,947.25/4,067.05 = 1,620.69/x
  3. Step 3: Cross multiply
    2,947.25x = 4,067.05 × 1,620.69
  4. Step 4: Simplify right side
    2,947.25x = 6,591,423.21
  5. Step 5: Solve for x
    x = 6,591,423.21/2,947.25
  6. Step 6: Final answer
    x = 2,236.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.